Bioaccumulation requires one organism, while biomagnification requires multiple organisms Biomagnification requires movement up a food chain in order to occur, while bioaccumulation does not To unlock this lesson you must be a Study.com Member.
The weighted average price for organic half gallon milk is $3.72. For a conventional half gallon of milk, the average. price is $2.33, an organic price premium of $1.39. Once again, there were more total ads for organic milk than. conventional milk. Organic milk advertisement numbers decreased 7%, and ad numbers for conventional milk. decreased 12%.
The price spread between organic and conventional half gallon milk is $2.08. Last week the spread was $1.17. price spread is the difference between the national weighted average price for organic, $4.11, and conventional, $2.03. There are over 9 times as many organic half gallon ads as conventional half gallons.